| General Information about Area Code 605 | |
|---|---|
| Country | United States |
| State / Province / Territory | South Dakota |
| Major City | Sioux Falls |
| Time Zone | Central (UTC-06:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 605-761 | Jefferson | Union | Landline |
| 605-943 | Ree Heights | Hand | Landline |
| 605-556 | Madison | Lake | Landline |
| 605-637 | New Effington | Roberts | Landline |
| 605-840 | Winner | Tripp | Wireless |
| 605-301 | Pierre | Hughes | Landline |
| 605-843 | Midland | Haakon | Landline |
| 605-660 | Yankton | Yankton | Wireless |
| 605-591 | Lead | Lawrence | Wireless |
| 605-294 | Claremont | Brown | Landline |
| 605-207 | Platte | Charles Mix | Wireless |
| 605-664 | Yankton | Yankton | Landline |
| 605-383 | Frederick | Brown | Landline |
| 605-521 | Sioux Falls | Minnehaha | Wireless |
| 605-613 | Platte | Charles Mix | Wireless |
| 605-786 | Rapid City | Pennington | Landline |
| 605-483 | Wentworth | Lake | Landline |
| 605-339 | Sioux Falls | Minnehaha | Landline |
| 605-415 | Rapid City | Pennington | Landline |
| 605-741 | Vermillion | Clay | Landline |